1 files changed, 5 insertions, 21 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 301bd50dc41..da3d10a77b2 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -2520,7 +2520,6 @@ try_window_id (window)
   int selective = (INTEGERP (current_buffer->selective_display)
                    ? XINT (current_buffer->selective_display)
                    : !NILP (current_buffer->selective_display) ? -1 : 0);
-  int multibyte = !NILP (current_buffer->enable_multibyte_characters);
   struct position val, bp, ep, xp, pp;
   int scroll_amount = 0;
   int delta;
@@ -2599,11 +2598,7 @@ try_window_id (window)
       val.hpos = bp.prevhpos - width + lmargin;
       val.tab_offset = bp.tab_offset + bp.prevhpos - width;
       did_motion = 1;
-      pos--;
-      if (multibyte)
-        DEC_POS (pos_byte);
-      else
-        pos_byte--;
+      DEC_BOTH (pos, pos_byte);
     }
 
   bp.vpos = vpos;
@@ -2866,11 +2861,7 @@ try_window_id (window)
         {
           val.hpos = xp.prevhpos - width + lmargin;
           val.tab_offset = xp.tab_offset + bp.prevhpos - width;
-          pos--;
-          if (multibyte)
-            DEC_POS (pos_byte);
-          else
-            pos_byte--;
+          DEC_BOTH (pos, pos_byte);
         }
 
       blank_end_of_window = 1;
@@ -3277,12 +3268,9 @@ display_text_line (w, start, start_byte, vpos, hpos, taboffset, ovstr_done)
       if (left_edge->vpos > vpos
           || left_edge->hpos > 0)
         {
-          pos = left_edge->bufpos - 1;
+          pos = left_edge->bufpos;
           pos_byte = left_edge->bytepos;
-          if (multibyte)
-            DEC_POS (pos_byte);
-          else
-            pos_byte--;
+          DEC_BOTH (pos, pos_byte);
           hpos = left_edge->prevhpos;
         }
       else
@@ -3926,11 +3914,7 @@ display_text_line (w, start, start_byte, vpos, hpos, taboffset, ovstr_done)
             {
               *p1++ = fix_glyph (f, continuer, 0);
               val.vpos = 0;
-              lastpos--;
-              if (multibyte)
-                DEC_POS (lastpos_byte);
-              else
-                lastpos_byte--;
+              DEC_BOTH (lastpos, lastpos_byte);
               val.tab_offset = taboffset + width;
             }
         }